Srujan Gaddam
b96cd6d755
Needed to type nullability for List parameters correctly. Change-Id: I55732a34f9e221324a15312985cb83b49a6811a6 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/142211 Reviewed-by: Stephen Adams <sra@google.com> Commit-Queue: Srujan Gaddam <srujzs@google.com>
92 lines
3.1 KiB
Plaintext
92 lines
3.1 KiB
Plaintext
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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part of $LIBRARYNAME;
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$(ANNOTATIONS)$(NATIVESPEC)$(CLASS_MODIFIERS)class $CLASSNAME$EXTENDS$IMPLEMENTS {
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List<Gamepad$NULLABLE> getGamepads() {
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var gamepadList = _getGamepads();
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// If no prototype we need one for the world to hookup to the proper Dart class.
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var jsProto = JS('', '#.prototype', gamepadList);
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if (jsProto == null) {
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JS('', '#.prototype = Object.create(null)', gamepadList);
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}
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applyExtension('GamepadList', gamepadList);
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return gamepadList;
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}
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String get language => JS('String', '#.language || #.userLanguage', this,
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this);
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/**
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* Gets a stream (video and or audio) from the local computer.
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*
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* Use [MediaStream.supported] to check if this is supported by the current
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* platform. The arguments `audio` and `video` default to `false` (stream does
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* not use audio or video, respectively).
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*
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* Simple example usage:
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*
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* window.navigator.getUserMedia(audio: true, video: true).then((stream) {
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* var video = new VideoElement()
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* ..autoplay = true
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* ..src = Url.createObjectUrlFromStream(stream);
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* document.body.append(video);
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* });
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*
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* The user can also pass in Maps to the audio or video parameters to specify
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* mandatory and optional constraints for the media stream. Not passing in a
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* map, but passing in `true` will provide a MediaStream with audio or
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* video capabilities, but without any additional constraints. The particular
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* constraint names for audio and video are still in flux, but as of this
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* writing, here is an example providing more constraints.
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*
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* window.navigator.getUserMedia(
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* audio: true,
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* video: {'mandatory':
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* { 'minAspectRatio': 1.333, 'maxAspectRatio': 1.334 },
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* 'optional':
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* [{ 'minFrameRate': 60 },
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* { 'maxWidth': 640 }]
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* });
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*
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* See also:
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* * [MediaStream.supported]
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*/
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@SupportedBrowser(SupportedBrowser.CHROME)
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Future<MediaStream> getUserMedia({audio: false, video: false}) {
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var completer = new Completer<MediaStream>();
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var options = {
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'audio': audio,
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'video': video
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};
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_ensureGetUserMedia();
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this._getUserMedia(convertDartToNative_SerializedScriptValue(options),
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(stream) {
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completer.complete(stream);
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},
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(error) {
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completer.completeError(error);
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});
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return completer.future;
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}
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_ensureGetUserMedia() {
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if (JS('bool', '!(#.getUserMedia)', this)) {
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JS('void', '#.getUserMedia = '
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'(#.getUserMedia || #.webkitGetUserMedia || #.mozGetUserMedia ||'
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'#.msGetUserMedia)', this, this, this, this, this);
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}
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}
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@JSName('getUserMedia')
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void _getUserMedia(options, _NavigatorUserMediaSuccessCallback success,
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_NavigatorUserMediaErrorCallback error) native;
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$!MEMBERS
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}
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